Choosing the first or additional engine for an inflatable vessel is always a compromise between power, weight and cost. outboard motor Waterman 5It's a popular hit with small PVC boat owners, and it's popular because of its affordable price and its thrust to get around comfortably with one or two passengers.
Many aquatic motorists see this unit as the ideal workhorse for quiet hunting or fishing in small waters. However, like any technology, the model has its own nuances that you should know about before buying. In this article, we will discuss in detail the design features, the actual fuel consumption and the specifics of maintenance of this engine.
It is worth noting that Waterman 5 It's often confused with other Chinese models, but it has recognizable features and a specific layout of the nodes, and understanding these differences will help you avoid common operating errors and extend the life of the powertrain. Let's dive into the technical details.
Technical specifications and design
At the heart of the unit is a two-stroke internal combustion engine with a volume of 98 cubic centimeters, the developers have relied on simplicity and maintainability, which is confirmed by the collapsible design of the main components. Power of 5 horsepower It allows you to accelerate a boat with one fisherman and equipment to quite acceptable speeds, although you should not wait for records.
The cooling system is a water-powered, forced type, which is the standard for modern motors of this power. An important element of the design is a deidud made of aluminum alloy, which provides protection from mechanical damage to the lower unit shaft. The engine weight in running order is about 19-20 kg, which allows you to carry it to one person, albeit with some effort.
⚠️ Note: At the first assembly, be sure to check the tightening of all bolt connections, as vibration during break-in can weaken the fastening of the lower unit to the deidud.
The carburetor fuel supply system is equipped with a membrane pump, which theoretically allows the engine to work at any roll. outboard motor Waterman 5 It is sensitive to the quality of the fuel mixture and the level of oil, and the design of the piston group involves the use of standard spark plugs, which are easy to find on sale.
Use only quality oil for two-stroke engines labeled TC-W3 to avoid the formation of soot on the piston and candle.
Fuel consumption and dynamic performance
One of the main issues that would be of concern to potential buyers is cost-effectiveness, and the two-stroke scheme dictates its conditions: the mixture is prepared in advance, and some of the gasoline burns with the oil. Waterman 5 It consumes about 1.5 to 2.0 liters of the mixture per hour when operating at full speed. At a cruising speed of about 70-80% of the maximum, the flow rate decreases to 1.2 to 1.5 liters.
The acceleration dynamics are directly dependent on the load and condition of the propeller. The regular propeller has a step that is focused on universal use, but it may not be enough to plane with full load. Many owners note that the engine confidently brings the boat up to 3 meters in length to the plane with one person on board. As the load increases, it becomes difficult to switch to planing mode.
It is important to consider that real speed figures depend not only on the engine, but also on the quality of the boat and its bottom. Dirty bottom or soft floorboard can significantly reduce efficiency.
| Mode of work | Turnover (rpm) | Expenditure (L/hour) | Speed (km/h)* |
|---|---|---|---|
| Idle move | 1000-1500 | 0.6 - 0.8 | 3 - 5 |
| Traction (trolling) | 2500-3000 | 1.2 - 1.4 | 10 - 12 |
| Cruiser | 4000-4500 | 1.6 - 1.8 | 20 - 22 |
| Full gas. | 5500-6000 | 2.0 - 2.2 | 25 - 28 |
* Speed is indicated for an inflatable boat with a length of 3.2 meters with one operator (weight about 85 kg).
Features of the break-in and the first launch
The breaking in process is a critical stage on which durability depends. Waterman outboard motor 5Disregarding the rules of laundry parts can lead to bullying piston group and loss of compression in the first hours of operation, manufacturers recommend developing several tanks of fuel mixture with increased oil content.
The standard ratio for the running period is 1:25 (1 liter of oil per 25 liters of gasoline), whereas in normal mode it is recommended 1:50. The process usually takes about 10 hours of work. The first couple of hours it is not recommended to give full gas, allowing the parts to warm up and wiggle together.
- 😎 The first 2 hours work at idle and low speed, periodically changing the mode of operation.
- 🚀 From the 3rd to the 5th hour, you can briefly open the throttle at 50-60% of the maximum.
- 💧 Be sure to use a water barrel or plug in a water cooling system before starting.
During the break-in, carefully monitor the temperature of the body and the presence of a jet of water from the control hole. The absence of a water "candle" indicates a malfunction of the pump or clogging of the system, which requires immediate stop of the engine.
☑️ Checklist before first launch
Maintenance and typical faults
Like any technique, Waterman 5 The main maintenance is to clean the carburetor, replace the candles and monitor the condition of the lower unit shaft. A common problem with budget engines is that the screw sours on the shaft due to water and lack of lubrication. To avoid a situation where the screw cannot be removed, you need to regularly remove it and lubricate the shaft with graphite grease.
The carburetor is another node that requires periodic cleaning, especially if you use gasoline of the lowest quality or keep the engine with fuel in the tank for a long time. The membranes can become rough and the jelly clogs can become clogged, which will lead to unstable idling or loss of power.
⚠️ Warning: Never keep a full tank of gasoline engine indoors without draining the fuel from the carburetor.
Also worth paying attention to is the condition of the lower unit: aluminum alloys are susceptible to electrochemical corrosion, especially in salt water. After each exit into salt water, the motor must be thoroughly washed with fresh water. In fresh water, it is enough just to rinse the engine and let it dry.
How do we extend the life of the ossilk?
For the prevention of bullies of the diewood shaft, it is recommended after each fishing in grassy reservoirs to remove the screw and clean the shaft from coiled vegetation, which can damage the edge of the obal when rotating.
Comparison with competitors and modifications
There are many analogues on the market, such as Hidea HD-F5BMS, Sea-Pro F 5BMS or more expensive Japanese Tohatsu. Waterman 5 outboard motor Unlike top brands, there may be less quality painting and simpler materials of lower unit, but they are often functionally identical.
There are modifications with different lengths of the lower unit (short and long), which allows you to choose the engine for a particular type of boat. Short daydude (S) is designed for boats with low transaction, long (L) for standard transverses with a height of about 380 mm. Choosing the wrong length will lead to cavitation or, conversely, to excessive water resistance.
Owners often compare noise to noise, and Waterman, like most Chinese two-strokes, is pretty noisy, and if you put a motor muffler in a motor muffler or use acoustic coke, you can reduce noise a little bit, but you can't get rid of it completely because of the way you get out of it through the water and the muffler.
Waterman’s main advantage over competitors is the availability of spare parts and low cost of ownership, despite a slightly higher noise level compared to premium brands.
Final selection recommendations
In summary, it can be said that Waterman 5 It's a smart choice for those looking for low-cost entry into the world of motorized boats, and it's not without the "childhood diseases" of budgetary equipment, but with proper maintenance, it can serve faithfully for many seasons, and it's a great option for a summer cottage, hunting or leisurely walks.
If you plan to actively plane with full load, it may be worth considering models with a capacity of 6-8 hp, since 5 forces is the border value for entering the plane with two adult passengers.
When buying, be sure to check the equipment: the availability of tools, a remote tank (if it is claimed) and documents. The presence of a service book and a warranty from the seller in this market segment is an important factor, since self-repair may require special tools.
Can Waterman 5 be used on seawater?
Use is possible, but requires thorough washing with fresh water after each exit. Aluminum alloys and steel in the structure are susceptible to corrosion in a salty environment. It is recommended to lubricate exposed metal parts with anti-corrosion compounds.
What kind of gasoline is better to put in this engine?
The best choice is AI-95 gasoline with an octane number of not less than 95. The use of AI-92 is allowed, but may require adjustment of the ignition angle or lead to detonation under load. The fuel should be fresh, not older than 1-2 months.
Should I disassemble the engine after winter storage?
Complete disassembly is not required if the engine has been mothballed correctly, but it is recommended to remove the candle, pour some oil into the cylinder and slowly turn the crankshaft several times to lubricate the piston group before starting, and check the condition of the glands.